From 9a4fae7a56341a39bfd612ddbd8d618aaa42f49b Mon Sep 17 00:00:00 2001
From: rudolfkoenig <>
Date: Thu, 27 Dec 2018 09:06:33 +0000
Subject: [PATCH] 01_FHEMWEB.pm: Add no-cache to the standard response (Forum
 #94911)

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@18064 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 FHEM/01_FHEMWEB.pm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/FHEM/01_FHEMWEB.pm b/FHEM/01_FHEMWEB.pm
index 803ad1bef..d91f239f0 100644
--- a/FHEM/01_FHEMWEB.pm
+++ b/FHEM/01_FHEMWEB.pm
@@ -564,8 +564,9 @@ FW_finishRead($$$)
   }
 
   my $length = length($FW_RET);
-  my $expires = ($cacheable?
-        ("Expires: ".FmtDateTimeRFC1123($hash->{LASTACCESS}+900)."\r\n") : "");
+  my $expires = ($cacheable ?
+         "Expires: ".FmtDateTimeRFC1123($hash->{LASTACCESS}+900)."\r\n" : 
+         "Cache-Control: no-cache, no-store, must-revalidate\r\n");
   Log3 $FW_wname, 4,
         "$FW_wname: $arg / RL:$length / $FW_RETTYPE / $compressed / $expires";
   if( ! FW_addToWritebuffer($hash,